<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title>贵美商城-商品购买页</title>
		<style>
			header,section,footer{
				height: 200px;
				border: 1px solid red;
			}
		</style>
	</head>

	<body>
		<header>
			<h2>网页头部</h2> </header>
		<section>
			<h2>网页主体部分</h2></section>
		<footer>
			<h2>网页底部</h2></footer>

	</body>

</html>